Ivosidenib (AG-120) Ivosidenib (AG-120) is an orally available inhibitor of isocitrate dehydrogenase type 1 (IDH1) , with potential antineoplastic activity. In vitro
TF-1 cells or primary human AML patient samples expressing mutant IDH1 are treated with AG-120.Treatment with AG-120 decreases intracellular 2-HG levels, inhibites growth factor independent proliferation and restores erythropoietin (EPO)-induced differentiation in TF-1 IDH1-R132H cells. Similarly, pharmacological inhibition of mutant IDH1 enzyme with AG-120 in primary human blast cells cultured ex vivo provides an effective way to lower intracellular 2-HG levels and induces myeloid differentiation.